24AA256 MICROCHIP [Microchip Technology], 24AA256 Datasheet - Page 2

• Manufacturer Part Number: 24AA256
• Description: 256K I 2 C CMOS Serial EEPROM
• Manufacturer: MICROCHIP [Microchip Technology]

24AA256/24LC256
1.0
1.1
V
All inputs and outputs w.r.t. V
Storage temperature ...................................................-65 C to +150 C
Ambient temp. with power applied...............................-65 C to +125 C
Soldering temperature of leads (10 seconds) ...........................+300 C
ESD protection on all pins
*Notice: Stresses above those listed under “Maximum Ratings” may
cause permanent damage to the device. This is a stress rating only and
functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specification is
not implied. Exposure to maximum rating conditions for extended peri-
ods may affect device reliability.
TABLE 1-2
FIGURE 1-1:
DS21203C-page 2
All parameters apply across the
specified operating ranges unless
otherwise noted.
A0, A1, A2,
SCL, SDA, and WP pins:
Input leakage current
Output leakage current
Pin capacitance
(all inputs/outputs)
Operating current
Standby current
CC
SCL
SDA
IN
SDA
OUT
WP
Note: This parameter is periodically sampled and not 100% tested.
.................................................................................................7.0V
High level input voltage
Low level input voltage
Hysteresis of Schmitt Trigger
inputs (SDA, SCL pins)
Low level output voltage
ELECTRICAL
CHARACTERISTICS
Maximum Ratings*
Parameter
DC CHARACTERISTICS
BUS TIMING DATA
T
T
SP
SU
SS
:
STA
T
............................. -0.6V to V
HD
T
:
STA
F
T
LOW
Industrial (I):
Automotive (E): V
C
I
I
Symbol
CC
CC
IN
V
I
V
V
I
, C
CCS
V
HYS
I
LO
Write
Read
OL
LI
IH
IL
OUT
T
T
CC
HIGH
HD
+1.0V
:
DAT
4 kV
0.05 V
0.7 V
Min
-10
-10
—
—
—
—
—
—
(unprotected)
V
(protected)
CC
CC
CC
CC
T
AA
= +1.8V to 5.5V
= +4.5V to 5.5V
TABLE 1-1
0.3 V
0.2 V
A0, A1, A2 User Configurable Chip Selects
Max
0.40
400
Name
10
10
10
—
—
SDA
SCL
3
1
V
T
V
WP
SU
CC
SS
CC
CC
:
DAT
V
Units
HYS
Ground
Serial Data
Serial Clock
Write Protect Input
+1.8 to 5.5V (24AA256)
+2.5 to 5.5V (24LC256)
mA
pF
V
V
V
V
V
A
A
A
A
Tamb = -40 C to +85 C
Tamb = -40 C to 125 C
PIN FUNCTION TABLE
T
T
SU
SU
Vcc
Vcc < 2.5V
V
I
I
V
V
V
V
Tamb = 25˚C, f
V
V
SCL = SDA = V
A0, A1, A2, WP = V
:
T
OL
OL
WP
:
CC
IN
IN
OUT
CC
CC
CC
R
STO
= 3.0 mA @ V
= 2.1 mA @ V
= V
= V
1998 Microchip Technology Inc.
= 5.0V (Note)
= 5.5V
= 5.5V, SCL = 400 kHz
= V
2.5V
2.5V (Note)
Function
SS
SS
SS
Conditions
or V
or V
or V
T
HD
T
CC
CC
c
BUF
= 1 MHz
CC
:
CC
WP
, WP = V
, WP = V
CC
CC
= 5.5V
SS
= 4.5V
= 2.5V
SS
CC